#
# # #FileType= strain_life #DataType= fitted #Name= SAE1141Nb #Name= AisiIt_13 #Stress_units= MPa #Strain_units= strain #Sy= 417.8 #Su= 695.2 #E= 220000 #monotonic_K= 1286.8 #monotonic_n= 0.217 #LowerYield= 414 #UpperYield= 422.6 #MaterialForm= bar #FailureDef= 50% load drop #BHN= 199 #Hardness, Rockwell B= 93 #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus #Basic Oxygen= False #Electric Furnace= True #Vacuum Degas= False #Ladle Refined= False #Ingot Cast= False #Continuous Cast= True #Pearlite, %= 70 #Ferrite, %= 30 #ASTM Grain Size No. (Min to Max)= 7 to 9 #Carbon, %= 0.39 #Manganese, %= 1.42 #Phosphorus, %= 0.017 #Sulfur, %= 0.096 #Silicon, %= 0.17 #Copper, %= 0.16 #Nickel, %= 0.06 #Chromium, %= 0.13 #Molybdenum, %= 0.03 #Columbium/Niobium, %= 0.03 #Tin, %= 0.010 # SAE1141Nb AisiIt_13 BHN= 199 Fn= 0 # Monotonic Props. Cyclic Props. #ELAS. MOD.= 31908. KSI, 220. GPA K' = 213.8 KSI, 1474.MPA #YIELD,0.2%= 61. KSI, 418. MPA N' = 0.2086 #ULT. STRG.= 101. KSI, 695. MPA F. STRG COEF= 161.4 KSI, 1113.MPA #K = 0.0 KSI, 0. MPA F.STRG EXP, b=-0.0961 #N = 0.0000 FAT DUCT COEF= 0.2598 #RED. IN AREA = 0.0 F.DUCT EXP, c=-0.4606 #T. FRAC. STG.= 0.0 KSI, 0. MPA Exp Cyc Yld = 58. Ksi, 403.MPA #T. FRAC. STR.= 0.000 Fit Cyc Yld = 59. Ksi, 408.MPA #No. fatigue data points= 18 # #NOTE!! The Following Points are FITTED DATA: #NOTE!! Fitted Stress computed using Experm. K' and n' #NOTE!! Manually adjusted Fatigue limit Points. FAC May09 #Stress_Units= MPa # Total Strain 2Nf Stress Mean Plastic Strain Initial # Amp Amp Stress Amp Elastic Mod. 0.26482 1 1061.3 0. 0.26000 220000. #Fitted_point 0.19350 2 996.9 0. 0.18896 220000. #Fitted_point 0.12811 5 917.6 0. 0.12393 220000. #Fitted_point 0.09400 10 861.9 0. 0.09008 220000. #Fitted_point 0.06915 20 809.5 0. 0.06547 220000. #Fitted_point 0.04633 50 745.2 0. 0.04294 220000. #Fitted_point 0.03439 100 699.9 0. 0.03121 220000. #Fitted_point 0.02567 200 657.4 0. 0.02268 220000. #Fitted_point 0.01762 500 605.1 0. 0.01487 220000. #Fitted_point 0.01339 1000 568.3 0. 0.01080 220000. #Fitted_point 0.01027 2000 533.7 0. 0.00785 220000. #Fitted_point 0.00737 5000 491.1 0. 0.00514 220000. #Fitted_point 0.00582 10000 461.0 0. 0.00372 220000. #Fitted_point 0.00467 20000 432.8 0. 0.00270 220000. #Fitted_point 0.00357 50000 397.9 0. 0.00176 220000. #Fitted_point 0.00297 100000 373.2 0. 0.00127 220000. #Fitted_point 0.00250 200000 349.9 0. 0.00091 220000. #Fitted_point 0.00205 500000 321.0 0. 0.00059 220000. #Fitted_point 0.00179 1000000 300.6 0. 0.00042 220000. #Fitted_point 0.00158 2000000 281.3 0. 0.00030 220000. #Fitted_point 0.00158 10000000 281.3 0. 0.00030 220000. #Fitted_point # #